c_tdCompanySetup.Table.Rows[c_bsDataSetSource.Position]["Logo"] = DBNull.Value;
我是这样写的,但是保存到数据库的总是:0x53797374656D2E427974655B5D
导致打开时总报错:参数无效
picLogo.Image = Image.FromStream(new MemoryStream((byte[])c_tdCompanySetup.Table.Rows[0]["Logo"]));
这是显示图片,好像就再MemoryStream出错的 应该怎样c_tdCompanySetup.Table.Rows[c_bsDataSetSource.Position]["Logo"]给他保存空?
或者怎样判断c_tdCompanySetup.Table.Rows[c_bsDataSetSource.Position]["Logo"]的值等于0x53797374656D2E427974655B5D也行?
我是这样写的,但是保存到数据库的总是:0x53797374656D2E427974655B5D
导致打开时总报错:参数无效
picLogo.Image = Image.FromStream(new MemoryStream((byte[])c_tdCompanySetup.Table.Rows[0]["Logo"]));
这是显示图片,好像就再MemoryStream出错的 应该怎样c_tdCompanySetup.Table.Rows[c_bsDataSetSource.Position]["Logo"]给他保存空?
或者怎样判断c_tdCompanySetup.Table.Rows[c_bsDataSetSource.Position]["Logo"]的值等于0x53797374656D2E427974655B5D也行?
{
get { return c_byteLogo; }
set { c_byteLogo = value; }
}
实体还有保存方法:
public int SaveImage()
{
string l_stringUpt = "UPDATE CompanySetup SET Logo = @ImageData";
SqlCommand l_sqlCmdUpt = new SqlCommand(l_stringUpt);
l_sqlCmdUpt.Parameters.Add(new SqlParameter("ImageData", c_byteLogo));
int l_intUptedRows = c_dbccDbConnection.SqlNonQuery(l_sqlCmdUpt);
return l_intUptedRows;
}